loeaine



@eine tetes stni fitte.

J., W. LORAINE, OF PHILADELPHIA, PENNSYLVANIA.

Letters Patent No. 80,752, dated August 4, 1868.

IMPROVEMENT IN lItIlGdElItS` POR SEIAITING.

'IO ALL WIIOM I'I MAY- CONCERN:

`13e it known that I, JQ W. LORAINE, of Philadelphie, Pennsylvanie, have invented un Improvement in Hangers for Shafting; und I do hereby declare the following to bc n. full, clear, and exact description of the same. y

My invention consists of certninvimprovements, fully dcscribedrhereufter, in hangers for shufting, by which improvements the'reedy udjustability of the honger to its proper position is effected.

In order to enable others skillcd'ih the art to make und usemy invention, I will now. proceed to describe its construction und operation. i i

Figure 1 isa vertical section of my improved hunger.

Figure 2, n vertical section on the line x au, iig. 1, and

Figure 3 a. sectional plnn on the line 1 2,'g. 1. Y

Similar letters refer to similar ports throughout the several views.

My improved hanger consists of tive moin parts, namely, the permanent casting A, secured to the beamsvor rafters by bolts passing through holes a in theplate I); .the plummet B, suspended from. the latter; the portionD, end the upper and lower bearings E E', carried by the seid portion, and the cap F. A segment, e, of o. sphere is formed on the under side, nt the middle of the bearing E', und a. similar segment, c', on the upper side ofthe upper bearing, the segment of the lower bearing being adopted to a. socket of at corresponding form in the adjustable portion D of the honger, und that of the upper bearing to the `cap F, which hnsin front a. liphf, corresponding to a. lip, h, on the portion D of the hanger, o recess in the lutter admitting n lip or projection, e', :it the rear of the cap. Y i l There is on the permanent portion A of the honger, e projection, m, the point of which must be in a. line :z: :v drawn through th'e point of suspension of the plummet B, end through the centre of the bearing, und the line t of junction, between .the two portions und D of' the hanger, must be pareilel with the snid line :v x. As seen in 2. the point of the projection m must be in a, line, y y, drown from the point of suspension ofthe plummet through the centre of the sphericel socket which receives the bearings.

In securing to the beams or rafters of the ceiling the, portion A. of. the henger, no-other precautions nre necessnry than that ot' so adjusting it thnt the point of its plummet shall coincide with the point of' the projection on, precise vertical adjustment being unnecessary, as this canbe accomplished, after Vsecuring thc portion A, by so operating the set-scrcwp s to rnisc or lower the adjustable portioniD of the honger to the desired extent, after whichthc two main portions of the hanger muy be permencn the nuts of' the bolts g. Y i i i As the portion D of the 'henger is, during its adjustment, guided by the-slots through which these bolts pnssl end ns the line of junction between the twoportion's A en d D of the hunger is parallel with the line .fr w, the centre of the bearing must always be in this linetno mattei' to what point the portion D may be adjusted. Itwill bc seen, without further description., that n number of lmngersthus constructed muy be quickly secured to their places and readily so adjusted that the centres of their bearings may hein proper line with each other, und that any departure ofthe hangers from their pijoper positions, consequent on lcngthcned use and thev strains to which they are subjected, may be et once ascertained by examining the position of the point of the plummet4 in respect to the projection m, for the non-coincidence of the two Vmust be 'n.certain indication that the portion A'of' the hunger requires reudjustment.

The plummet and projection m muy be employed to advantage in connection with ordinary hangers which have no adjustable portion D, although the henger described is 'preferable for reasons given above.

The bearings E and E can bc reedily removed und replaced, :ill that is necessary for detaching the cap E being the withdrawal of the single bolt from the lipsf and 7L.' i l l j I claim as my invention, and desire to secure byLettex-s Patent- 1. The combination, with a. hanger, of a plummet B and projection m, the latter being arranged in respect to the centre of the bearing and the ,point of suspension of the plummet, as set forth for the purpose specified.

tly secured together by tightening 2. The within-described hanger, composed of the permanent portion A, with its plummet B and projection m, and the adjustable portion D, carrying the bearings E and E', the whole being combined and arranged substantally as and for the purpose described.

3. The cap F, arranged toconfine the bearings E and E', secured in front to the portion Dof the hanger by a boltI or screw, and fitting at the rear yin a. recess in the said portion D, a-ll substanticlly as and for the purpose lherein set forth. l

In testimony-whereof, I have signed my name to this specification 'in' the presence of two subscribing witnesses J. W. LORAINE. l

Witnesses:

JOHN Warm, C. B. PRICE. 

